2KR/2KS
2-2-4
21. Original detection switch (ODSW) ............... Detects the opening/closing of the original platen.
22. Original size sensor (OSS) .......................... Detects the size of the original.
23. Registration switch (RSW)........................... Controls the secondary paper feed start timing.
24. Eject switch (ESW) ...................................... Detects a paper misfeed in the fuser section.
25. Feedshift switch (FSSW) ............................. Detects a paper misfeed in the switchback section in a duplex copy.
26. Toner sensor (TNS)...................................... Detects the toner density in the developing unit.
27. Toner container detection switch
(TCDSW) ..................................................... Detects the presence of the toner container.
28. Toner container sensor (TCS)...................... Detects the quantity of toner in a toner container.
29. Waste toner box detection switch
(WTDSW)..................................................... Detects the presence of the waste toner box.
30. Overflow sensor (OFS) ................................ Detects when the waste toner box is full.
31. Humidity sensor (HUMS) ............................. Detects absolute humidity.
32. Fuser thermistor 1 (FTH1) ........................... Detects the heat roller temperature.
33. Fuser thermistor 2 (FTH2) ........................... Detects the heat roller temperature.
34. Front cover switch (FRCSW) ....................... Detects the opening and closing of the front cover.
35. Left cover 1 switch (LC1SW) ....................... Detects the opening and closing of the left cover 1.
36. Left cover 2 switch (LC2SW) ....................... Detects the opening and closing of the left cover 2.
37. Duplex paper conveying switch
(DUPPCSW) ................................................ Detects a paper jam in the duplex section.
Service Manual Y111960-2
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